Mobility Radeon HD 3870 X2 vs Radeon HD 8770M
When choosing between Mobility Radeon HD 3870 X2 and Radeon HD 8770M, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Mobility Radeon HD 3870 X2 and Radeon HD 8770M.
Mobility Radeon HD 3870 X2 and Radeon HD 8770M are Laptop Graphics Cards
Note: Mobility Radeon HD 3870 X2 and Radeon HD 8770M are only used in laptop graphics. They have lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Mobility Radeon HD 3870 X2 or Radeon HD 8770M here:
Main Specs
Mobility Radeon HD 3870 X2
Radeon HD 8770M
Power consumption (TDP)
110 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Memory type
GDDR3
GDDR5
Maximum RAM amount
512 MB
2 GB
Display Connectors
No outputs
No outputs
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Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon HD 8770M uses PCIe 3.0 x8 interface.
Mobility Radeon HD 3870 X2 has 510 GB more memory, than Radeon HD 8770M.
Both cards are used in Laptops.
Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon HD 8770M - with GCN.
Core clock speed of Radeon HD 8770M is 115 MHz higher, than Mobility Radeon HD 3870 X2.
Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon HD 8770M - by 28 nm process technology.
Memory clock speed of Radeon HD 8770M is 3650 MHz higher, than Mobility Radeon HD 3870 X2.
Game benchmarks
Assassin's Creed Odyssey
Battlefield 5
Call of Duty: Warzone
Counter-Strike: Global Offensive
Cyberpunk 2077
Dota 2
Far Cry 5
Fortnite
Forza Horizon 4
Grand Theft Auto V
Metro Exodus
Minecraft
PLAYERUNKNOWN'S BATTLEGROUNDS
Red Dead Redemption 2
The Witcher 3: Wild Hunt
World of Tanks
high / 1080p
6−7
7−8
ultra / 1080p
4−5
4−5
QHD / 1440p
0−1
0−1
low / 720p
16−18
16−18
medium / 1080p
8−9
8−9
Mobility Radeon HD 3870 X2 and Radeon HD 8770M have the same average FPS in Assassin's Creed Odyssey.
high / 1080p
12−14
12−14
ultra / 1080p
10−11
10−11
QHD / 1440p
0−1
0−1
low / 720p
24−27
24−27
medium / 1080p
12−14
12−14
Mobility Radeon HD 3870 X2 and Radeon HD 8770M have the same average FPS in Battlefield 5.
low / 768p
45−50
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
Mobility Radeon HD 3870 X2 and Radeon HD 8770M have the same average FPS in Call of Duty: Warzone.
low / 768p
130−140
140−150
medium / 768p
110−120
110−120
ultra / 1080p
50−55
55−60
QHD / 1440p
27−30
30−33
4K / 2160p
27−30
27−30
high / 768p
80−85
80−85
The average gaming FPS of Radeon HD 8770M in Counter-Strike: Global Offensive is 4% more, than Mobility Radeon HD 3870 X2.
low / 768p
55−60
55−60
ultra / 1080p
18−20
20−22
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 8770M in Cyberpunk 2077 is 2% more, than Mobility Radeon HD 3870 X2.
low / 768p
80−85
80−85
medium / 768p
55−60
60−65
ultra / 1080p
30−35
35−40
The average gaming FPS of Radeon HD 8770M in Dota 2 is 5% more, than Mobility Radeon HD 3870 X2.
high / 1080p
8−9
8−9
ultra / 1080p
7−8
8−9
4K / 2160p
3−4
3−4
low / 720p
18−20
18−20
medium / 1080p
8−9
9−10
Mobility Radeon HD 3870 X2 and Radeon HD 8770M have the same average FPS in Far Cry 5.
high / 1080p
14−16
14−16
ultra / 1080p
10−11
10−11
low / 720p
60−65
60−65
medium / 1080p
21−24
24−27
The average gaming FPS of Radeon HD 8770M in Fortnite is 3% more, than Mobility Radeon HD 3870 X2.
high / 1080p
12−14
12−14
ultra / 1080p
10−12
10−12
QHD / 1440p
1−2
1−2
low / 720p
24−27
27−30
medium / 1080p
14−16
14−16
Mobility Radeon HD 3870 X2 and Radeon HD 8770M have the same average FPS in Forza Horizon 4.
low / 768p
50−55
50−55
medium / 768p
45−50
45−50
high / 1080p
12−14
12−14
ultra / 1080p
6−7
6−7
QHD / 1440p
0−1
0−1
Mobility Radeon HD 3870 X2 and Radeon HD 8770M have the same average FPS in Grand Theft Auto V.
high / 1080p
4−5
5−6
ultra / 1080p
3−4
3−4
4K / 2160p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
6−7
6−7
The average gaming FPS of Radeon HD 8770M in Metro Exodus is 16% more, than Mobility Radeon HD 3870 X2.
low / 768p
95−100
95−100
high / 1080p
85−90
90−95
ultra / 1080p
80−85
80−85
medium / 1080p
90−95
90−95
The average gaming FPS of Radeon HD 8770M in Minecraft is 1% more, than Mobility Radeon HD 3870 X2.
high / 1080p
16−18
16−18
ultra / 1080p
14−16
14−16
low / 720p
30−35
30−35
medium / 1080p
18−20
18−20
Mobility Radeon HD 3870 X2 and Radeon HD 8770M have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
ultra / 1080p
7−8
7−8
QHD / 1440p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
10−12
10−12
Mobility Radeon HD 3870 X2 and Radeon HD 8770M have the same average FPS in Red Dead Redemption 2.
low / 768p
24−27
24−27
medium / 768p
16−18
16−18
high / 1080p
9−10
9−10
ultra / 1080p
6−7
6−7
4K / 2160p
6−7
6−7
Mobility Radeon HD 3870 X2 and Radeon HD 8770M have the same average FPS in The Witcher 3: Wild Hunt.
low / 768p
85−90
85−90
medium / 768p
45−50
45−50
ultra / 1080p
18−20
20−22
high / 768p
35−40
35−40
The average gaming FPS of Radeon HD 8770M in World of Tanks is 2% more, than Mobility Radeon HD 3870 X2.
Full Specs
Mobility Radeon HD 3870 X2
Radeon HD 8770M
Architecture
RV6xx
GCN
Code name
M88-XT CF
Mars
Type
Laptop
Laptop
Release date
1 September 2008
16 November 2012
Pipelines
640
384
Core clock speed
660 MHz
775 MHz
Boost Clock
825 MHz
Transistor count
666 million
950 million
Manufacturing process technology
55 nm
28 nm
Texture fill rate
10.56
19.80
Floating-point performance
2x 422.4 gflops
633.6 gflops
Memory bus width
256 Bit
128 Bit
Memory clock speed
850 MHz
4500 MHz
Memory bandwidth
54.4 GB/s
72 GB/s
Shared memory
-
-
DirectX
10.1 (10_1)
12 (11_1)
Shader Model
4.1
5.1
OpenGL
3.3
4.6
OpenCL
N/A
1.2
Vulkan
N/A
1.2.131
Laptop size
large
medium sized
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